package com.peek.util;

/**
 * Created by mengdexuan on 2017/8/29 17:17.
 */

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;

import java.io.*;
import java.util.Enumeration;

public class Zip {

	private static final int buffer = 2048;

	/**
	 * 解压Zip文件
	 *
	 * @param path 文件目录
	 */
	public static void unZip(String path) {
		int count = -1;
		String savepath = "";

		File file = null;
		InputStream is = null;
		FileOutputStream fos = null;
		BufferedOutputStream bos = null;

		savepath = path.substring(0, path.lastIndexOf(".")) + File.separator; //保存解压文件目录
		new File(savepath).mkdir(); //创建保存目录
		ZipFile zipFile = null;
		try {
			zipFile = new ZipFile(path, "gbk"); //解决中文乱码问题
			Enumeration<?> entries = zipFile.getEntries();

			while (entries.hasMoreElements()) {
				byte buf[] = new byte[buffer];

				ZipEntry entry = (ZipEntry) entries.nextElement();

				String filename = entry.getName();
				boolean ismkdir = false;
				if (filename.lastIndexOf("/") != -1) { //检查此文件是否带有文件夹
					ismkdir = true;
				}
				filename = savepath + filename;

				if (entry.isDirectory()) { //如果是文件夹先创建
					file = new File(filename);
					file.mkdirs();
					continue;
				}
				file = new File(filename);
				if (!file.exists()) { //如果是目录先创建
					if (ismkdir) {
						new File(filename.substring(0, filename.lastIndexOf("/"))).mkdirs(); //目录先创建
					}
				}
				file.createNewFile(); //创建文件

				is = zipFile.getInputStream(entry);
				fos = new FileOutputStream(file);
				bos = new BufferedOutputStream(fos, buffer);

				while ((count = is.read(buf)) > -1) {
					bos.write(buf, 0, count);
				}
				bos.flush();
				bos.close();
				fos.close();

				is.close();
			}

			zipFile.close();

		} catch (IOException ioe) {
			ioe.printStackTrace();
		} finally {
			try {
				if (bos != null) {
					bos.close();
				}
				if (fos != null) {
					fos.close();
				}
				if (is != null) {
					is.close();
				}
				if (zipFile != null) {
					zipFile.close();
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}


	public static void main(String[] args) {

		unZip("C:\\Users\\18514\\Desktop\\download\\hello_好的.zip");

		/*String f = "C:\\Users\\18514\\Desktop\\download";
		File file = new File(f);
		String[] test = file.list();
		for (int i = 0; i < test.length; i++) {
			System.out.println(test[i]);
		}

		System.out.println("------------------");

		String fileName = "";

		File[] tempList = file.listFiles();
		for (int i = 0; i < tempList.length; i++) {
			if (tempList[i].isFile()) {
				System.out.println("文     件：" + tempList[i]);

				fileName = tempList[i].getName();

				System.out.println("文件名：" + fileName);
			}
			if (tempList[i].isDirectory()) {
				System.out.println("文件夹：" + tempList[i]);
			}
		}*/
	}

}
